If you hover the cursor over your user name and then select from the drop down 'My Buzz' this gives you a list of events that have happened with your account. If you find the entry telling you that your photo has won a VS challenge click on the 'expand' that's under the date/time and this will tell you which picture yours was up against.
Kevin.

If you hover the cursor over your user name and then select from the drop down 'My Buzz' this gives you a list of events that have happened with your account. If you find the entry telling you that your photo has won a VS challenge click on the 'expand' that's under the date/time and this will tell you which picture yours was up against.